Agilent Technologies 4395A - Page 190

Calibration
Required
for
the Network
Analyzer Mode
P
erforming
a
1-P
ath
2-P
ort
Calibration
Step
1: Opening
the 1-P
ath 2-P
ort
Calibration
Menu
1.
Press 4
Cal
5
.
2.
Select the
proper
calibration
kit.
If
the
connector
type
or
calibration
kit
name
shown in
the
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CAL KIT
softkey label
is
not
the
same
as
the
calibration
kit
to
be
used,
see
the
\Selecting
the
Calibration
Kit"
procedure
.
3.
Press
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
CALIBRATE
MENU
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
ONE-PATH
2-PORT
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
REFLECT'N
.
Step 2:
Measuring the
Reection
1. Connect
a shielded
OPEN to
the
test
port.
2.
Press
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
(S11):
OPEN
(for
the 7
mm calibration
kit) or
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
(S11):
OPENS
(for
the type-N
calibration
kit).
The
OPEN
data
is
measured,
and
the
softkey
label
N
N
N
N
N
N
N
N
N
N
N
N
N
N
OPEN
is
underlined.
3.
If
the
type-N
calibration
kit
is
selected,
do
the
following:
a.
Press
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
OPEN
[M]
(for
a
male
port
connector)
or
press
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
OPEN
[F]
(for
a
female
port
connector).
The
OPEN
data
is
measured
and
the
softkey
label is
then underlined.
b.
Press
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
DONE:
OPENS
.
4.
Disconnect
the
OPEN
and
connect
a
SHORT
to
the
test
port.
5.
Press
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
SHORT
(for
the
7
mm or
3.5
mm
calibration
kit)
or
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
SHORTS
(for
the
type-N
calibration
kit).
When
the
7
mm
or
3.5
mm
calibration
kit
is
selected,
the
SHORT data
is measured
and
the
softkey
label
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
SHORT
is underlined.
6.
If
the
type-N
calibration kit
is selected,
do the
following:
a.
Press
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
SHORT
[M]
(for
a
male
port
connector)
or
press
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
SHORT
[F]
(for
a
female
port
connector).
The
SHORT
data
is
measured
and
the
softkey
label
is then
underlined.
b.
Press
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
DONE:
SHORTS
.
7. Disconnect the SHORT and connect an impedance-matched LO
AD (50 or 75 )
to the test
port.
8.
Press
NNNNNNNNNNNNNN
LOAD . Then wait the LO
AD is measured and the softkey
label
NNNNNNNNNNNNNN
LOAD is underlined.
9.
Press
NNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNN
REFLECT'N DONE
.
The reection calibration coecients are computed and stored. The two-port calibration menu
is displayed (with the
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REFLECT'N softkey underlined).
7-8 Calibration